Congrats! The A-trim is a very formidable blower for those who want a 'little' taste of what a supercharger can do. My car orginally came with an A-trim with the stock motor and I thought it was damn quick. The A-trim offers a SWEET sound thats not too loud and annoying.
However, DO NOT put more that 9psi on an A-trim... trust me on this. And thats what Vortech says. Putting a powerpipe on an A-trim will drive it to the max and will increase blower wear. Mine blew a gearing wiht only the 3.33" pulley and a powerpipe seeing 10psi in 1st.
I did have Vortech repair and upgrade it to an S-trim and WOW much more power. I now see over 11psi.... I have no need to go about 5,000 rpms when you hit 11psi! Having an A-trim upgraded to an S-trim made the blower SO MUCH louder... louder than a normal S-trim.
I sure hope you install your new fuel system soon! The last thing you want is detonation with your blower! Make sure you install a new igition.. that will surely help your performance.
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1994 Mustang Cobra
308ci, Vortech S-trim 11#, ported GT-40 heads, E-303 cam, FMS 1 5/8 headers, BBK Offroad H-pipe, 2-chamber flows, and several other goodies.
Rebel Racing. Home of Bay Area Mustangs